Area units calculator & converter tool
Hectare Conversions Table
Equivalent of 2 Hectare: |
| 20000 m2 (Square meter) |
| 200000000 cm2 (Square centimeter) |
| 2000000 dm2 (Square decimeter) |
| 20000000000 mm2 (Square milimeter) |
| 0.02 km2 (Square Kilometer) |
| 200 Are |
| 20 Decare |
| 20000 Centiare |
| 5.8501 Arpent |
| 20000000 Barn |
| 215278 Square feet |
| 4.9421 Acre |
| 790.738 Square perche |
| 0.007722 Square mil |
| 23919.8 Square yard |
| 31000092.551925 Square inch |
| 0.0002146 Canton |
| 0.03088 Homestead |
| 19.768 Rood |
Hectare / Barn Units Definition
Hectare
hectare, unit of area in the metric system equal to 100 ares, or 10,000 square meters, and the equivalent of 2.471 acres in the British imperial system and the customary measurement of the United States. The term is derived from the Latin area and hect, an irregular contraction of the Greek word percent. Although the are is the primary metric unit of land measurement, the hectare is more commonly used in practice. The hectare is, by definition, equal to one djerib in Turkey, one jerib in Iran, one gong qing in mainland China, one manzana in Argentina and one bunder in the Netherlands.
Barn
A barn (symbol: b) is a metric unit of area equal to 10-28 m2 (100 fm2). Originally used in nuclear physics to express the cross section of nuclei and nuclear reactions, it is also used today in all areas of high energy physics to express the cross sections of any diffusion process, and is best understood as a measure of the probability of interaction between small particles. A barn corresponds approximately to the cross section of a uranium nucleus. The barn is also the unit of area used in nuclear quadrupole resonance and nuclear magnetic resonance to quantify the interaction of a nucleus with an electric field gradient. Although the barn was never an SI unit, the SI standards body recognized it in the 8th SI brochure (replaced 2019) due to its use in particle physics.